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Ying Hu; Weifan Chen; Chen Ji; Mengzhen Xu; Changwei Pan; Qingyu Gao – Journal of Chemical Education, 2023
An integrated system comprising a commercial high-performance liquid chromatography HPLC (except autosampler) equipped with an external multichannel autofeeding module was developed to accomplish interference-free separation and kinetic tracking for the H[subscript 2]O[subscript 2]-thiourea reaction, which is proposed as a lab experiment for…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Kinetics
Nebraska Department of Education, 2022
In Winter 2021-2022, the Nebraska Student-Centered Assessment System (NSCAS) assessments are administered in ELA and mathematics in Grades 3-8. In Spring 2021-2022, the NSCAS assessments are administered in English language arts (ELA) and mathematics in Grades 3-8 and in science in Grades 5 and 8. The purposes of the NSCAS assessments are to…
Descriptors: English, Language Arts, Student Centered Learning, Mathematics Tests
Nebraska Department of Education, 2023
In Fall and Winter 2022-2023, the NSCAS assessments were administered in ELA and mathematics for grades 3-8. In Spring 2022-2023, the NSCAS assessments were administered in English language arts (ELA) and mathematics for grades 3-8 and in science for grades 5 and 8. The purposes of the NSCAS assessments are to measure and report Nebraska students'…
Descriptors: English, Language Arts, Student Centered Learning, Mathematics Tests
Center on Standards and Assessments Implementation, 2019
In order to comply with the regulations put forth by the Elementary and Secondary Education Act (ESEA), as amended by the Every Student Succeeds Act (ESSA), states are required to submit evidence associated with their statewide accountability systems to the United States Department of Education (ED) for peer review. Some states have elected to…
Descriptors: College Entrance Examinations, Peer Evaluation, Educational Legislation, Federal Legislation
OECD Publishing, 2014
The "PISA 2012 Technical Report" describes the methodology underlying the PISA 2012 survey, which tested 15-year-olds' competencies in mathematics, reading and science and, in some countries, problem solving and financial literacy. It examines the design and implementation of the project at a level of detail that allows researchers to…
Descriptors: International Assessment, Secondary School Students, Foreign Countries, Achievement Tests
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Boone, William J.; Scantlebury, Kathryn – Science Education, 2006
Recent international studies note that countries whose students perform well on international science assessments report the need to change science education. Some countries use assessments for diagnostic purposes to assist teachers in addressing their students' needs. However, in the United States, standards-based reform has focused the national…
Descriptors: International Studies, Psychometrics, Educational Change, Science Education